Ethyl 3-(oxan-4-yl)-3-oxopropanoate → HCID 178433773, compound

HRID 510367Notes

Reaction equation

O=[C:2]([CH:9]1[CH2:14][CH2:13][O:12][CH2:11][CH2:10]1)[CH2:3][C:4]([O:6]CC)=O.[CH3:15][C:16]1[C:20]([CH2:21][C:22]2[CH:27]=[CH:26][CH:25]=[C:24]([C:28]([F:31])([F:30])[F:29])[C:23]=2[CH3:32])=[C:19]([NH2:33])[NH:18][N:17]=1>C(O)(=O)C>[CH3:15][C:16]1[C:20]([CH2:21][C:22]2[CH:27]=[CH:26][CH:25]=[C:24]([C:28]([F:30])([F:29])[F:31])[C:23]=2[CH3:32])=[C:19]2[N:33]=[C:2]([CH:9]3[CH2:10][CH2:11][O:12][CH2:13][CH2:14]3)[CH:3]=[C:4]([OH:6])[N:18]2[N:17]=1

Participants

Conditions

Temperature: 140 °C

Procedure

To a suspension of ethyl 3-oxo-3-(tetrahydro-2H-pyran-4-yl)propanoate (98 mg, 0.49 mmol) in acetic acid (2 mL) was added 3-methyl-4-{[2-methyl-3-(trifluoromethyl)phenyl]methyl}-1H-pyrazol-5-amine (125 mg, 0.46 mmol), prepared as described in Example 1, step a, in microwave reaction vessel. It was sealed and heated with microwave reactor at 140° C. for 40 minutes. The reaction mixture was cooled, diluted with acetic acid (2 mL) and stood for overnight. Precipitate was observed, filtered. Solid was washed with cooled methanol. Solid was dried. The titled compound was obtained. (75 mg, 38%) LC/MS: MS (ES+) m/e 406 (MH+); 1H NMR (400 MHz, DMSO-d6) δ ppm 1.68-1.80 (m, 4H) 2.05 (s, 3H) 2.46 (s, 3H) 2.75 (s, 1H) 3.37 (td, J=11.68, 2.40 Hz, 2H) 3.95 (d, J=14.40 Hz, 2H) 3.99 (s, 2H) 5.57 (s, 1H) 7.00 (d, J=7.33 Hz, 1H) 7.28 (t, J=7.45 Hz, 1H) 7.55 (d, J=7.58 Hz, 1H) 11.59 (d, J=1.01 Hz, 1H).

Workup

customprepared
customin microwave reaction vessel
customIt was sealed
temperatureThe reaction mixture was cooled
filtrationfiltered
washSolid was washed with cooled methanol
customSolid was dried

Sources & evidence

ORD record: ord-b7b16a014247462fbca1aa00e42c31da
Source dataset: uspto-grants-2015_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09096605B2

Reaction notes

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